On the semi-rigidity of dovetail joint for the joinery of LVL panels

Roche, Stéphane; Robeller, Christopher; Humbert, Laurent; Weinand, Yves

doi:10.1007/s00107-015-0932-y

Cited by 30 publications

(15 citation statements)

References 6 publications

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“…Roche et al (2015a) showed that the shear strength of finger-and dovetail-jointed plywood plates is similar to the shear strength of screwed connections. Li et al showed that the connectors can be combined with metal fasteners, and further research by Roche et al (2015b) compared the rotational stiffness of joints at ridges, demonstrating the particular strength of through-tenon joints.…”

Section: Robotic Assemblymentioning

confidence: 94%

Fabricate 2017

Peters¹,

Trummer²,

Amtsberg³

et al. 2017

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Section: Robotic Assemblymentioning

confidence: 94%

Fabricate 2017

Peters¹,

Trummer²,

Amtsberg³

et al. 2017

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“…The development of these 2D FE models was expanded for grooving timber interfaces by Girardon et al [44,45]. Roche et al [46] studied the semi-rigidity of the dovetail joint for a beam on two supports with a numerical model developed with MATLAB R (The MathWorks Inc., Natick, USA).…”

Section: Numerical Modelsmentioning

confidence: 99%

A Calculation Method for Interconnected Timber Elements Using Wood-Wood Connections

2020

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Wood-wood connections, widely used in the past, have been progressively replaced by steel fasteners in timber constructions. Currently, they can be manufactured and implemented more efficiently thanks to digital fabrication techniques. In addition, with the emergence of new timber plate engineered products, digitally produced wood-wood connections have been developed with a strong focus on complex free-form geometries. The gained knowledge through research and building implementations have pushed the development of more standardized structural elements. As a result, this work presents a new concept of building components using through tenon connections based on the idea of transportable flat-packs directly delivered and assembled on site. The main objective of this research is to develop a convenient calculation model for practice that can capture the semi-rigid behavior of the connections and predict the effective bending stiffness of such structural elements. A case study is used as a reference with three large-scale slabs of a 8.1 m span. Bending and vibration tests are performed to study the mechanical behavior and assess the proposed calculation method. The results show the high influence of the semi-rigid behavior of connections on the bending properties and, therefore, on the serviceability limit state. The model is in good agreement with the test results, and further improvements can be made regarding the local behavior of the connection. This study demonstrates the feasibility of the proposed construction system and the applicability of the developed calculation model to design practice.

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“…This simplified the handling, transport, and final assembly of the shell. The mechanical strength of the joints, which has been examined separately by Roche and colleagues, [8][9][10] was studied without the use of adhesives. Figure 25(a) shows the NURBS target surface of the prototype.…”

Section: × 16 Segment Shell Prototypementioning

confidence: 99%

Double-layered timber plate shell

Robeller

Konaković

Dedijer

et al. 2017

International Journal of Space Structures

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This article presents a new lightweight construction system for doubly curved shells made from timber plates, inspired by the masonry vaults of Eladio Dieste. The system was developed for a specific case-study project, and general applications to other freeform surfaces are being discussed. The shells are built from two interconnected layers of structural wood veneer plates, using integral through-tenon joints for a fast, precise, and simple assembly. This allows for the construction of a series of differently shaped vaults without a costly mold or support structure. Instead, inclined joints cut with a 5-axis computer numerical controlled milling machine embed the correct location and angle between plates into the shape of the parts. This constrains the relative motions between joined parts to one assembly path. To take advantage of the benefits of such connectors, the constrained assembly paths must be considered in the fundamental design of the system, allowing for the insertion of each plate. This imposes additional constraints in the segmentation process of doubly curved shells. In order to meet the requirements and resolve the multi-constraint system, we use a global, nonlinear optimization approach. Developed as a close collaboration between architects, computer scientists and structural engineers, this article includes an experimental analysis of the influence of parametric modifications in the shape of connectors on their load-bearing performance.

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On the semi-rigidity of dovetail joint for the joinery of LVL panels

Cited by 30 publications

References 6 publications

Fabricate 2017

Fabricate 2017

A Calculation Method for Interconnected Timber Elements Using Wood-Wood Connections

Double-layered timber plate shell

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